plump vs porpoise

plump

verb
  • To drop or fall suddenly or heavily, all at once. 

  • To cast or let drop all at once, suddenly and heavily. 

  • To make plump; to fill (out) or support; often with up. 

  • To give a plumper (kind of vote). 

  • To give (a vote), as a plumper. 

  • To grow plump; to swell out. 

  • To favor or decide in favor of something. 

adv
  • Directly; suddenly; perpendicularly. 

noun
  • The sound of a sudden heavy fall. 

  • A group of geese flying close together. 

adj
  • Having a full and rounded shape; chubby, somewhat overweight. 

  • Fat. 

  • Sudden and without reservation; blunt; direct; downright. 

porpoise

verb
  • Said of an aircraft: to make a series of plunges when taking off or landing; or of a watercraft: to successively plunge up and down in the water. 

  • Said of an air-breathing aquatic animal such as a porpoise or penguin: To repeatedly jump out of the water to take a breath and dive back in a continuous motion. 

noun
  • Any small dolphin. 

  • A small cetacean of the family Phocoenidae, related to dolphins and whales. 

How often have the words plump and porpoise occurred in a corpus of books? (source: Google Ngram Viewer )